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-rw-r--r--adb/adb.c2
-rw-r--r--include/netutils/ifc.h1
-rw-r--r--libnetutils/dhcpclient.c14
-rw-r--r--libnetutils/ifc_utils.c20
-rw-r--r--netcfg/netcfg.c105
5 files changed, 116 insertions, 26 deletions
diff --git a/adb/adb.c b/adb/adb.c
index 4258a01..c939ef0 100644
--- a/adb/adb.c
+++ b/adb/adb.c
@@ -1348,7 +1348,7 @@ int adb_main(int is_daemon, int server_port)
** AID_ADB to access the USB driver
** AID_LOG to read system logs (adb logcat)
** AID_INPUT to diagnose input issues (getevent)
- ** AID_INET to diagnose network issues (ping)
+ ** AID_INET to diagnose network issues (netcfg, ping)
** AID_NET_BT and AID_NET_BT_ADMIN to diagnose bluetooth (hcidump)
** AID_SDCARD_R to allow reading from the SD card
** AID_SDCARD_RW to allow writing to the SD card
diff --git a/include/netutils/ifc.h b/include/netutils/ifc.h
index 49e77e4..3b27234 100644
--- a/include/netutils/ifc.h
+++ b/include/netutils/ifc.h
@@ -51,6 +51,7 @@ extern int ifc_set_hwaddr(const char *name, const void *ptr);
extern int ifc_clear_addresses(const char *name);
extern int ifc_create_default_route(const char *name, in_addr_t addr);
+extern int ifc_remove_default_route(const char *ifname);
extern int ifc_get_info(const char *name, in_addr_t *addr, int *prefixLength,
unsigned *flags);
diff --git a/libnetutils/dhcpclient.c b/libnetutils/dhcpclient.c
index a05b7cb..700b02f 100644
--- a/libnetutils/dhcpclient.c
+++ b/libnetutils/dhcpclient.c
@@ -353,28 +353,28 @@ static int send_message(int sock, int if_index, dhcp_msg *msg, int size)
static int is_valid_reply(dhcp_msg *msg, dhcp_msg *reply, int sz)
{
if (sz < DHCP_MSG_FIXED_SIZE) {
- if (verbose) ALOGD("Wrong size %d != %d\n", sz, DHCP_MSG_FIXED_SIZE);
+ if (verbose) ALOGD("netcfg: Wrong size %d != %d\n", sz, DHCP_MSG_FIXED_SIZE);
return 0;
}
if (reply->op != OP_BOOTREPLY) {
- if (verbose) ALOGD("Wrong Op %d != %d\n", reply->op, OP_BOOTREPLY);
+ if (verbose) ALOGD("netcfg: Wrong Op %d != %d\n", reply->op, OP_BOOTREPLY);
return 0;
}
if (reply->xid != msg->xid) {
- if (verbose) ALOGD("Wrong Xid 0x%x != 0x%x\n", ntohl(reply->xid),
- ntohl(msg->xid));
+ if (verbose) ALOGD("netcfg: Wrong Xid 0x%x != 0x%x\n", ntohl(reply->xid),
+ ntohl(msg->xid));
return 0;
}
if (reply->htype != msg->htype) {
- if (verbose) ALOGD("Wrong Htype %d != %d\n", reply->htype, msg->htype);
+ if (verbose) ALOGD("netcfg: Wrong Htype %d != %d\n", reply->htype, msg->htype);
return 0;
}
if (reply->hlen != msg->hlen) {
- if (verbose) ALOGD("Wrong Hlen %d != %d\n", reply->hlen, msg->hlen);
+ if (verbose) ALOGD("netcfg: Wrong Hlen %d != %d\n", reply->hlen, msg->hlen);
return 0;
}
if (memcmp(msg->chaddr, reply->chaddr, msg->hlen)) {
- if (verbose) ALOGD("Wrong chaddr %x != %x\n", *(reply->chaddr),*(msg->chaddr));
+ if (verbose) ALOGD("netcfg: Wrong chaddr %x != %x\n", *(reply->chaddr),*(msg->chaddr));
return 0;
}
return 1;
diff --git a/libnetutils/ifc_utils.c b/libnetutils/ifc_utils.c
index ab6c654..bfe7121 100644
--- a/libnetutils/ifc_utils.c
+++ b/libnetutils/ifc_utils.c
@@ -639,6 +639,26 @@ int ifc_reset_connections(const char *ifname, const int reset_mask)
#endif
}
+/*
+ * Removes the default route for the named interface.
+ */
+int ifc_remove_default_route(const char *ifname)
+{
+ struct rtentry rt;
+ int result;
+
+ ifc_init();
+ memset(&rt, 0, sizeof(rt));
+ rt.rt_dev = (void *)ifname;
+ rt.rt_flags = RTF_UP|RTF_GATEWAY;
+ init_sockaddr_in(&rt.rt_dst, 0);
+ if ((result = ioctl(ifc_ctl_sock, SIOCDELRT, &rt)) < 0) {
+ ALOGD("failed to remove default route for %s: %s", ifname, strerror(errno));
+ }
+ ifc_close();
+ return result;
+}
+
int
ifc_configure(const char *ifname,
in_addr_t address,
diff --git a/netcfg/netcfg.c b/netcfg/netcfg.c
index eec1b2f..204bf1d 100644
--- a/netcfg/netcfg.c
+++ b/netcfg/netcfg.c
@@ -24,7 +24,13 @@
#include <stdlib.h>
#include <string.h>
-static const char *ipaddr(in_addr_t addr)
+void die(const char *reason)
+{
+ perror(reason);
+ exit(1);
+}
+
+const char *ipaddr(in_addr_t addr)
{
struct in_addr in_addr;
@@ -32,13 +38,13 @@ static const char *ipaddr(in_addr_t addr)
return inet_ntoa(in_addr);
}
-static void usage(void)
+void usage(void)
{
- fprintf(stderr,"usage: netcfg [<interface> dhcp]\n");
+ fprintf(stderr,"usage: netcfg [<interface> {dhcp|up|down}]\n");
exit(1);
}
-static int dump_interface(const char *name)
+int dump_interface(const char *name)
{
unsigned addr, flags;
unsigned char hwbuf[ETH_ALEN];
@@ -63,7 +69,7 @@ static int dump_interface(const char *name)
return 0;
}
-static int dump_interfaces(void)
+int dump_interfaces(void)
{
DIR *d;
struct dirent *de;
@@ -79,11 +85,56 @@ static int dump_interfaces(void)
return 0;
}
+int set_hwaddr(const char *name, const char *asc) {
+ struct ether_addr *addr = ether_aton(asc);
+ if (!addr) {
+ printf("Failed to parse '%s'\n", asc);
+ return -1;
+ }
+ return ifc_set_hwaddr(name, addr->ether_addr_octet);
+}
+
+struct
+{
+ const char *name;
+ int nargs;
+ void *func;
+} CMDS[] = {
+ { "dhcp", 1, do_dhcp },
+ { "up", 1, ifc_up },
+ { "down", 1, ifc_down },
+ { "deldefault", 1, ifc_remove_default_route },
+ { "hwaddr", 2, set_hwaddr },
+ { 0, 0, 0 },
+};
+
+static int call_func(void *_func, unsigned nargs, char **args)
+{
+ switch(nargs){
+ case 1: {
+ int (*func)(char *a0) = _func;
+ return func(args[0]);
+ }
+ case 2: {
+ int (*func)(char *a0, char *a1) = _func;
+ return func(args[0], args[1]);
+ }
+ case 3: {
+ int (*func)(char *a0, char *a1, char *a2) = _func;
+ return func(args[0], args[1], args[2]);
+ }
+ default:
+ return -1;
+ }
+}
+
int main(int argc, char **argv)
{
+ char *iname;
+ int n;
+
if(ifc_init()) {
- perror("Cannot perform requested operation");
- exit(1);
+ die("Cannot perform requested operation");
}
if(argc == 1) {
@@ -92,23 +143,41 @@ int main(int argc, char **argv)
return result;
}
- if(argc != 3) usage();
+ if(argc < 3) usage();
- char* iname = argv[1];
- char* action = argv[2];
+ iname = argv[1];
if(strlen(iname) > 16) usage();
- if (!strcmp(action, "dhcp")) {
- if (do_dhcp(iname)) {
- fprintf(stderr, "dhcp failed: %s\n", strerror(errno));
- ifc_close();
- exit(1);
+ argc -= 2;
+ argv += 2;
+ while(argc > 0) {
+ for(n = 0; CMDS[n].name; n++){
+ if(!strcmp(argv[0], CMDS[n].name)) {
+ char *cmdname = argv[0];
+ int nargs = CMDS[n].nargs;
+
+ argv[0] = iname;
+ if(argc < nargs) {
+ fprintf(stderr, "not enough arguments for '%s'\n", cmdname);
+ ifc_close();
+ exit(1);
+ }
+ if(call_func(CMDS[n].func, nargs, argv)) {
+ fprintf(stderr, "action '%s' failed (%s)\n", cmdname, strerror(errno));
+ ifc_close();
+ exit(1);
+ }
+ argc -= nargs;
+ argv += nargs;
+ goto done;
+ }
}
- } else {
- fprintf(stderr,"no such action '%s'\n", action);
+ fprintf(stderr,"no such action '%s'\n", argv[0]);
usage();
+ done:
+ ;
}
-
ifc_close();
+
return 0;
}
generated by cgit v1.1 at 2024-12-27 07:37:04 +0000